fix docs generation error

Author: tzolov

spring-ai-docs/src/main/antora/modules/ROOT/pages/getting-started.adoc

@@ -48,7 +48,7 @@ repositories {
 
 == Chat Models
 
-* xref:api/clients/openai.adoc#_getting_started[OpenAI]
+* xref:api/clients/openai-chat.adoc#_getting_started[OpenAI]
 * xref:api/clients/azure-openai.adoc#_getting_started[Azure OpenAI]
 * xref:api/clients/huggingface.adoc#_getting_started[HuggingFace]
 * xref:api/clients/bedrock.adoc#_getting_started[Bedrock]